産業用集中巻埋込磁石同期モータの位置センサレス指向設計

摘要

交流可変速駆動システムは，パワーエレクトロニクス技術rnの進展により高性能?高機能化が進み，広く産業界に普及しrnており，駆動源として誘導電動機と永久磁石同期モータが，rn用途に要求される負荷特性，省エネ性や経済性等に応じてrn巧みに使い分けられている。%This paper presents the design of the concentrated-winding IPM motor under saliency-based sensorless drive with a high-frequency signal injection. Finite element analysis is used to examine the influence of the IPM rotor geometry on the operating region during the sensorless drive. On the basis of this analysis, a design procedure has been established to obtain a suitable rotor geometry that can maximize the torque capability during the sensorless drive. The 45 Nm 5.5 kW 6 pole 9 slot IPM motor is optimally designed for general industrial application. The validity of the proposed design is experimentally verified by using the prototype.